Nothing
Lmat<-function(k){
aux1<-diag(k)*0
aux1[1,1:k]<-1
for (i in 1:(k-1)) aux1[1+i,1+i]=1
L=array(0,dim=c(k,k*(k-1)/2))
cont=0
for (i in 1:k){
for (j in 1:(k-1)){
if (i>j){
cont=cont+1
L[,cont]=aux1[,i]-aux1[,j]
}
}
}
return(L)
}
varB<-function(model,nobs) model$varFix[1:nobs,1:nobs]
#Computes variability between observers' means
sb<-function(k,b,varB){
L<-Lmat(k) # Building L matrix
difmed=t(L)%*%b # Calculating observers sum of squares
#vardifmed=t(L)%*%varB%*%L
A<-L%*%t(L)
aux2<-(t(difmed)%*%difmed)-sum(diag(A%*%varB))
sb<-max(aux2/(k*(k-1)),0)
return(sb)
}
# Variance of sb
var.sb<-function(k,b,varB){
L<-Lmat(k) # Building L matrix
A<-L%*%t(L)
xx<-( 2*sum(diag( ( (A%*%varB)**2 ) ) )+ 4*( t(b)%*%A%*%varB%*%A%*%b ) ) /((k*(k-1))**2)
return(xx)
}
s_exp<-function(tau) exp(2*(tau))
d_exp<-Deriv(s_exp,"tau")
icc0<-function(sa,se) sa/(sa+se)
icc1<-function(sa,se,sb) sa/(sa+sb+se)
icc2<-function(sa,sab,se,sb) sa/(sa+sab+sb+se)
icc3<-function(sa,sab,sag,se,sb) (sa+sag)/(sa+sab+sag+se+sb)
icc4<-function(sa,sab,sag,se,sb,sumd) (sumd*(sa+sag))/((sumd*(sa+sab+sag+se))+sb)
d0_1<-Deriv(icc0,"sa")
d0_2<-Deriv(icc0,"se")
d1_1<-Deriv(icc1,"sa")
d1_2<-Deriv(icc1,"se")
d1_3<-Deriv(icc1,"sb")
d2_1<-Deriv(icc2,"sa")
d2_2<-Deriv(icc2,"sab")
d2_3<-Deriv(icc2,"se")
d2_4<-Deriv(icc2,"sb")
d3_1<-Deriv(icc3,"sa")
d3_2<-Deriv(icc3,"sab")
d3_3<-Deriv(icc3,"sag")
d3_4<-Deriv(icc3,"se")
d3_5<-Deriv(icc3,"sb")
d4_1<-Deriv(icc4,"sa")
d4_2<-Deriv(icc4,"sab")
d4_3<-Deriv(icc4,"sag")
d4_4<-Deriv(icc4,"se")
d4_5<-Deriv(icc4,"sb")
ZF<-function(r,m) 0.5*log((1+(m-1)*r)/(1-r))
dZF<-Deriv(ZF,"r")
# Mean of replicates
# L matrix for ccclon
Lmat_lon<-function(nm,nt,b,dades){
# Design matrix
# Number of between-methods differences
nd<-nm*(nm-1)/2
# All differences design matrix
C<-array(0,dim=c(length(b),nt*nm))
k<-0
for (i in 1:nm){
for (j in 1:nt){
k<-k+1
C[,k]<-c(1,contrasts(dades$met)[i,],contrasts(dades$time)[j,],c(contrasts(dades$met)[i,]%*%t(contrasts(dades$time)[j,])))
}
}
# Difference between methods at each time matrix
L<-array(0,dim=c(length(b),nt*nd))
k<-0
for (i in 1:(nt*(nm-1))){
for (j in (1:(nm-1))){
if ((i+nt*j)<=(nt*nm)){
k<-k+1
L[,k]=C[,i]-C[,i+nt*j]
}
}
}
return(L)
}
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